Designed to prevent the reversal of flow in a piping system
MATERIALS OF CONSTRUCTION
SIZE RANGE & PRESSURE RATINGS
BODY CONFIGURATIONS
Butt Weld Ends-Cast & Forged Raised Face Flanged- Cast Only Short & Long Pattern-ASME B16.10
COMPLIANCE TO ASME B16.34
OPERATING TEMPERATURE: HIGH UP TO 1130 F
TYPICAL APPLICATIONS
HIGHLY EFFICIENT The self-aligning disc-hinge assembly and tapered seat ring allow sealing in no-flow conditions and/ or in the case of flow reversal. The advantage of this design is flow is only permitted in one direction to protect major plant equipment, as well as minimizing backflow during seating of the disc.
TIGHT SHUTOFF The spherical profile of the disc mounting arm allows for the disc to pivot about the hinge bore so that the disc is consistently aligned with the seat to provide exceptionally tight shutoff, and ensures the disc is always seated in no-flow conditions
LONG LIFE
The positive internal disc stop is an integral part of the body casting, providing a robust stopping point of the disc to prevent fluttering. Hardfaced seating surfaces prolong the life of the disc by reducing wear during normal operation where the disc can experience higher impacts due to the pendulum effect.
INTERNAL DISC HANGER Having the disc internally hing eliminates body wall penetrations. The unique Pacific swing check valve not only eliminates potential leakage through external hinge pins, but the disc-hinge assembly is designed for ease of maintenance, by having only two bolts in the disc bracket that allow full removal of the disc-hinge assembly
